Elastocapillary Transition in Gel Drop Oscillations

Autor:	Xingchen Shao, John R. Saylor, Joshua Bostwick, Steven A. Fredericks
Rok vydání:	2019
Předmět:	Capillary wave Scaling law Drop size Materials science Drop (liquid) General Physics and Astronomy Natural frequency Mechanics 01 natural sciences Physics::Fluid Dynamics chemistry.chemical_compound chemistry Ultrasonic levitation 0103 physical sciences Agarose 010306 general physics
Zdroj:	Physical Review Letters. 123
ISSN:	1079-7114 0031-9007
Popis:	We report experimental observations of surface oscillations in an ultrasoft agarose gel drop. Ultrasonic levitation is used to excite shape oscillations in the gel drop and we report the natural frequency of the drop as it depends upon a nondimensional elastocapillary number, which we define as the ratio of the elastocapillary length to drop size. Our experiments span a wide range of experimental parameters and we recover the appropriate scaling laws in the elastic and capillary wave limits. The crossover between these two limits is observed and agrees well with a proposed frequency relationship.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fcf1d10ffa4cda8f17e5dc2ddfbcf2f4 https://doi.org/10.1103/physrevlett.123.188002 Zobrazit plný text záznamu